Primitive solutions of (8.2.9):
   order   x       y                         z
    1.    (27,11) (24,24,20,20,17,16,8,7,2)       2.141321947681   (Lander et al, 1967)
    2.    (73,21) (70,62,42,34,26,12,7,5,4) 2.17.53233.445598161
   No other solutions for x1.lt.87. 

Primitive solutions of (8.3.8):
   order   x         y                         z (factors)
    1.    (50,17,8)  (47,40,38,38,16,16,12,6)  3.3.13.59.149.3041.12491 (Lander et al, 1967)
    2.    (52,51,17) (56,34,29,26,18,18,12,1)          2.49617324429649
    3.    (63,51,43) (62,52,44,42,42,27,23,21)    13.17.37.53549.697951
    4.    (67,31,17) (59,58,54,49,46,39,32,2)      3.13.17.613767035221
    5.    (75,35,16) (70,65,56,38,38,34,31,26)     2.97.1627.3178911667
    ?.    (93,26,11) (91,64,64,64,51,36,28,24)
   No other solutions for x1.lt.77.

Primitive solutions of (8.4.6):
   order   x         y                         z
    1.    (47,29,12,5)  (45,40,30,26,23,3)  3.683.63409.187123
   No other solutions for x1.lt.52.